/Engine/Source/Editor/MovieSceneTools/Public/MovieSceneEventCustomization.h
The output array of pin names should be of the same size as GetWellKnownParameterCandidates, with NAME_None for those parameters that aren't hooked up to any pin.
virtual void GetWellKnownParameterPinNames ( [UObject](API\Runtime\CoreUObject\UObject\UObject) * EditObject, void * RawData, [TArray](API\Runtime\Core\Containers\TArray)< [FName](API\Runtime\Core\UObject\FName) > & OutParameters ) const